May 2020 – May 2022 · 2 yrs · Noida, Uttar Pradesh, India

• Implemented and setup AKS/EKS using terraform and terragrunt.
• Setup end to end logging and monitoring solution on EKS/AKS/KOPS using Prometheus, AlertManager, Grafana, Elasticsearch, Fluentd, Kibana.
• Using terraform and terragrunt to setup the entire AWS/Azure cloud infra.
• Managing multiple Kops based Kubernetes clusters.
• Using Jenkins for CI/CD and Writing Scripted/Declarative pipelines.
• Designed ALB based solution to integrate with AWS WAF to secure URLs hosted on K8s.
• Running Keycloak as Identity provider and integrated with AD for single-sign-on.
• Managing Kubernetes Nginx Ingress controller and setup hostname/path based routing.
• Using Istio ServiceMesh for Canary release, traffic management and rate-limiting.
• Using Helm for deployment on kubernetes and storing helm charts, Docker images and Application artifacts on Artifactory.
• Managing Vault to securely access password, keys, Certs, and using vault CRD to create k8s secrets from vault path.
• Managing AWS infrastructure like EKS, EC2, S3, Route53, VPC, ALB/NLB/ELB, EBS, IAM, Security.
• Implemented backup solution for k8s using Velero for scheduling backup and restore.

Oct 2019 – Feb 2020 · 4 mos · Gurgaon, India

• Designed and set up Kubernetes cluster on AWS using Kops.
• Used Kubeapps for managing helm charts release.
• Managed AWS services like EC2, S3, VPC, ASG, ELB, EBS, IAM, Route53, RDS.
• Setup CI/CD with Jenkins and running jobs using pipelines as a code.
• Monitoring and logging of Kubernetes Cluster and application using Kibana, Logstash, Filebeat, Elasticsearch, Alertmanager, Prometheus and Grafana.
• Monitoring, debugging, and supporting Production Servers running on AWS.
• Implemented and set up Kubernetes Ingress nginx controller.
• Used Istio ServiceMesh for canary release, traffic management and authentication.

Jul 2018 – Oct 2019 · 1 yr 3 mos

• Designed and Implemented Kubernetes HA cluster on Bare-metal.
• Deployed Kubernetes on AWS using EKS.
• Used Helm to deploy any workload, created reproducible builds of the Kubernetes applications, managed Kubernetes manifest files and releases of Helm packages.
• POC and architect transition and implementation of Kubernetes/Docker.
• Managed Ansible Playbooks with Ansible modules, implemented CD automation using Ansible, managing existing servers and automation of build/configuration of new servers.
• Managed AWS infrastructure like EKS, EC2, VPC, AutoScaling, S3, ELB, EBS, IAM, Security.
• Managed GCP infrastructure (GKE, Compute Engine, IAM, Security, VPC, Storage, LoadBalancing, Container Registry)
• Setup CI/CD with Jenkins on Kubernetes with dynamic provisioning of slaves on demand.
• Published Ansible project on GitHub to automate deployment of kubernetes HA cluster.
• Handled monitoring and logging of Kubernetes Cluster and application using Graylog, Grafana, Kibana, Logstash, Filebeat, Elasticsearch, Alertmanager and Prometheus.
• Deployed Aerospike, Kafka, Rabbitmq, Cassandra, Mongo, Elasticsearch and many more stateful application clusters on Kubernetes.
• Implemented and set up Kubernetes Ingress nginx controller and migrated F5 irules on it.
• Managed Mysql, Mongo, aerospike and cassandra databases.
• Designed the telemetry solution to replace nagios monitoring system with prometheus and Grafana.
• Setup GlusterFS and integrated with Kubernetes cluster to provide a central storage solution.
• Created in-house Docker images using Dockerfile and set up internal HA Docker registry.
• Deployed Kong as API Gateway for microservices.
• Supported Production Tomcat, Apache and Nginx server.
• Performed performance analysis for Java applications and helped the development team in setting up and deploying applications and various other application modules on Linux.
• Used Akamai for CDN and also using Akamai security appliances and DNS as well.

Jul 2016 – Jun 2018 · 1 yr 11 mos

Sep 2014 – Jun 2016 · 1 yr 9 mos

Apr 2013 – Aug 2014 · 1 yr 4 mos · Gurgaon, India

• Installed and configured all the Linux servers in the network on the demand of the clients.
• Performed upgrades/patches, troubleshooting, and maintenance on Linux servers.
• Maintained Apache web server with integrating mod_security, mod_rewrite, mod_jk, mod_proxy.
• Deployed Open-Ldap Directory Server with master-slave replication.
• Maintained Apache-tomcat application server, Liferay-Portal and CAS.
• Built Release setup using Jenkins, SVN, Maven, Ant.
• Wrote shell scripts to simplify daily administration and routine tasks, production server’s health, log monitor/rotation/archive.
• Setup KVM servers, successfully built Virtual servers to reduce hardware cost.
• Production Support, Co-ordination with team members on routine issues and provided on call support for production P1 issues.
• Designed and implementation of system administration policies/procedures, write status reports and user technical documentation.
• Used Jenkins for build-release/ and automated the application code release on production using shell script.
• Maintained necessary back-up of the important files and prepare environment creation handbook for future references.
• Basic Mysql database skills: set up Mysql replication with multiple slaves.
• Accountable for rendering support for the Systems & maintaining uptime for all systems as per Customer Defined SLA’s.
• Utilized software/tools to meet business needs: Subversion, Orca, Jenkins, Ant, Maven, Awstats, Webmin.

Oct 2010 – Mar 2013 · 2 yrs 5 mos · Gurgaon, India

Mar 2010 – Sep 2010 · 6 mos · Gurgaon, India

• Monitor overall status and health of Ministry of Indian Railways website http://indianrailways.gov.in which include 36 zonal websites.
• Functioned as primary Linux administer and systems engineer to maintain system services and performance.
• Maintained VMware VSphere 4 environment with VCenter management.
• Build, configured and deployed VMs and templates and cloning of existing VM.
• Maintained RHEL KVM/XEN servers, successfully migration physical server on it.
• Installed and configured Redhat enterprises Linux cluster suit setup for Apache web server using GFS share storage.
• Wrote and maintained shell scripts to simplify daily administration tasks.
• Deployed amd managed Apache, Tomcat and JBOSS application server.
• Implementation and configuration of BIND DNS Server, FTP, NFS, MySql and Qmail Server on RHEL5.X.
• Monitored, troubleshoot, and resolved issues involving Linux operating systems.
• Utilized open source software to meet business needs: awstats, webmin, Nagios, Alfresco content management system.
• Preparing daily routine checklist of Linux Servers.
• Daily usage analysis of hosted websites using webalizer and awstats.
• Dealing with backup by using tar, cpio, dd, HP Data Protector Manager

Nov 2007 – Mar 2010 · 2 yrs 4 mos · Gurgaon, India

• Responsible for Server and desktop system administration and support to the network.
• Installed, upgraded and patched Linux, Windows 2000, Windows 2003 and Windows XP.
• Monitored, troubleshot, and resolved issues involving operating systems (Linux, Windows XP and Windows 2003).
• Setting up network environments using TCP/IP, NIS, NFS, DNS, SNMP agents, DHCP and Proxy.
• Persisted and implemented FTP, samba and NFS Server to maintain the shared folders in the Organization.
• Installed and maintained different applications such as Microsoft Outlook, Open Office, Lotus Notes, Symantec antivirus, Printer and Scanner.
• Solved issues through remote desktop, VNC Viewer and Net meeting Services.
• Provided technical support for end-user customers, diagnosed and resolved problems associated with network/desktop connection.
• Basic Administration of Windows server 2003 which includes Installation, User & Group Management.
• Troubleshooting the system and end user issues.
• Providing solutions for troubleshooting of LAN and Wi-Fi.